Global and local optimization in the GOLD program

Yongtian Wang; Masaki Isshiki; Huilan Liu; Qun Hao; Tong Xu

doi:10.1117/12.363778

27 September 1999 Global and local optimization in the GOLD program

Yongtian Wang, Masaki Isshiki, Huilan Liu, Qun Hao, Tong Xu

Author Affiliations +

Proceedings Volume 3780, Optical Design and Analysis Software; (1999) https://doi.org/10.1117/12.363778
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The Global Explorer (GE) algorithm proposed by Isshiki is implemented in the GOLD program developed by Beijing Institute of Technology. Global optimization with GE consists of many local optimization runs with or without the escape function using the damped-least-squares method. In order to improve the efficiency of the local optimization, two search schemes are incorporated into the program. The first one searches for the best damping factor which effectively determines the optimum direction of the solution vector in the multi-dimensional variable space, and the second search is conducted along that direction to find the optimum length of the solution vector. Experiments are also made to determine the optimum default values for the parameters of the escape function.

Citation Download Citation

Yongtian Wang, Masaki Isshiki, Huilan Liu, Qun Hao, and Tong Xu "Global and local optimization in the GOLD program", Proc. SPIE 3780, Optical Design and Analysis Software, (27 September 1999); https://doi.org/10.1117/12.363778

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